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AIM: The aim was to assess two macronutrient interventions in a 2x2 factorial dietary design to determine their effects on oral health.
MATERIALS AND METHODS: Participants (65-75 years old) with a BMI between 20-35 kg/m of a larger RCT who consented to an oral health assessment were recruited. They had ad libitum access to one of four experimental diets (omnivorous higher fat or higher carbohydrate, semi-vegetarian higher fat or higher carbohydrate) for 4 weeks. Periodontal examination included periodontal probing depth (PPD), clinical attachment level (CAL) and bleeding on probing. Oral plaque and gingival crevicular fluid (GCF) were collected before and after the intervention.
RESULTS: Between baseline and follow up the number of sites with a CAL <5 mm (mean difference (MD) -5.11±9.68, P=0.039) increased and the GCF amount (MD -23.42±39.42 Periotron Units (PU), P=0.050) decreased for the semi-vegetarian high fat diet. For the mean proportion of sites with PPD reduction >1 mm and CAL gain >1 mm significant differences were calculated between the diets investigated. The clinical parameters were not associated with changes of the oral microbiota.
CONCLUSION: The results of this study provided evidence that a semi-vegetarian higher fat diet provides benefits to clinical parameters of periodontal health. ACTRN12616001606471. This article is protected by copyright. All rights reserved.
Joerg Eberhard,Kate Ruiz,Jian Tan,Thilini N Jayasinghe,Shahrukh Khan,Elif Eroglu,Christina Adler,Stephen J Simpson,David G Le Couteur,David Raubenheimer,Laurence Macia,Alison K Gosby,Rosilene V Ribeiro